#!/bin/bash

# Slackware build script for asl
# Originally written by Oleg O. Chukaev <email removed>

# Modified and currently maintained by B. Watson <yalhcru@gmail.com>.
# Original version had no license. Modified version released under the
# WTFPL. See http://www.wtfpl.net/txt/copying/ for details.

# 20210829 bkw: update for 142_bld207.
# - docs won't build on -current's texlive, use prebuilt (on 14.2).
# 20201106 bkw: update for 142_bld178.
# 20191202 bkw: update for 142_bld150.
# 20180911 bkw: update for 142_bld137.
# 20180615 bkw: update for 142_bld134.

# 20180103 bkw: update for 142_bld123. Fixes the problem where the
# docs were installed to / instead of /usr/doc/$PRGNAM-$VERSION.

# 20170926 bkw:
# - take over maintenance
# - update for 142_bld119
# - i486 => i586
# - clean up the documentation mess, add DOCTYPES with sane default
# - don't install compile instructions in /usr/doc
# - add UTF8 option (default off)
# - nitpick README and slack-desc
# - run test suite, include results in doc dir

cd $(dirname $0) ; CWD=$(pwd)

PRGNAM=asl
SRCNAM=asl-current
VERSION=${VERSION:-142_bld207}
SRCVER=$(echo $VERSION | tr _ -)
BUILD=${BUILD:-1}
TAG=${TAG:-_SBo}
PKGTYPE=${PKGTYPE:-tgz}

if [ -z "$ARCH" ]; then
  case "$( uname -m )" in
    i?86) ARCH=i586 ;;
    arm*) ARCH=arm ;;
       *) ARCH=$( uname -m ) ;;
  esac
fi

# If the variable PRINT_PACKAGE_NAME is set, then this script will report what
# the name of the created package would be, and then exit. This information
# could be useful to other scripts.
if [ ! -z "${PRINT_PACKAGE_NAME}" ]; then
  echo "$PRGNAM-$VERSION-$ARCH-$BUILD$TAG.$PKGTYPE"
  exit 0
fi

TMP=${TMP:-/tmp/SBo}
PKG=$TMP/package-$PRGNAM
OUTPUT=${OUTPUT:-/tmp}

if [ "$ARCH" = "i586" ]; then
  SLKCFLAGS="-O2 -march=i586 -mtune=i686"
  LIBDIRSUFFIX=""
elif [ "$ARCH" = "i686" ]; then
  SLKCFLAGS="-O2 -march=i686 -mtune=i686"
  LIBDIRSUFFIX=""
elif [ "$ARCH" = "x86_64" ]; then
  SLKCFLAGS="-O2 -fPIC"
  LIBDIRSUFFIX="64"
else
  SLKCFLAGS="-O2"
  LIBDIRSUFFIX=""
fi

set -e

rm -rf $PKG
mkdir -p $TMP $PKG $OUTPUT
cd $TMP
rm -rf $SRCNAM
tar xvf $CWD/$SRCNAM-$SRCVER.tar.?z*
cd $SRCNAM
chown -R root:root .
find -L .  -perm /111 -a \! -perm 755 -a -exec chmod 755 {} \+ -o \
        \! -perm /111 -a \! -perm 644 -a -exec chmod 644 {} \+

sed -e "/^CFLAGS/s,=.*,= $SLKCFLAGS," \
    -e 's,/local,,' \
    -e "s,/lib,&$LIBDIRSUFFIX," \
    -e "s,doc/.*,doc/$PRGNAM-$VERSION," \
    < Makefile.def.tmpl \
    > Makefile.def

BUILD_DOCS="${BUILD_DOCS:-no}"
[ "$BUILD_DOCS" = "no" ] && sed -i '/^all:/s, *docs,,' Makefile

# Slackware standard is still non-utf8 locales in 14.2.
UTF8="${UTF8:-no}"
[ "$UTF8" = "yes" ] && \
  sed -i 's/CHARSET_ISO8859_1/CHARSET_UTF8/' Makefile.def

# binaries are already stripped, no symlinks in man pages.
# 20201106 bkw: upstream changed PREFIX to INSTROOT, support both
# in case someone wants to build an old version.
DESTDIR=PREFIX
grep -q INSTROOT Makefile && DESTDIR=INSTROOT
make -j1 binaries install $DESTDIR=$PKG DOCPATH=""
gzip -9 $PKG/usr/man/man?/*.?

mkdir -p $PKG/usr/doc/$PRGNAM-$VERSION

[ "${TESTS:-yes}" = "yes" ] && \
  make -j1 test > $PKG/usr/doc/$PRGNAM-$VERSION/test_suite.log 2>&1

# 20210829 bkw: docs won't build on -current (aka 15.0rc1). I don't
# speak TeX and don't have time to learn it, so I prebuilt the docs
# on a 14.2 box and made a tarball.
if [ "$BUILD_DOCS" = "no" ]; then
  tar xvf $CWD/$PRGNAM-doc-$VERSION.tar.xz
  install -m0644 -oroot -groot $PRGNAM-doc-$VERSION/* $PKG/usr/doc/$PRGNAM-$VERSION
else
  # Don't use 'make docs', we don't need to waste time converting the
  # same documentation into multiple formats (html, ps, pdf, plain text)
  # unless the user really wants to. Also, "make docs" followed by "make
  # install" results in a mess, the /usr/doc dir ends up containing all
  # the converted formats, plus the TeX source, plus all the temporary
  # files created during the doc build. The stuff below is more work than
  # I really wanted to do, but...

  DOCTYPES="${DOCTYPES:-html}"

  for doctype in $DOCTYPES; do
    for lang in EN DE; do
      case "$doctype" in
        html)
          make tex2html
          make -C doc_$lang as.html TEX2HTML=../tex2html
          cat doc_$lang/as.html > $PKG/usr/doc/$PRGNAM-$VERSION/as-$lang.html
          ;;
        pdf)
          make -C doc_$lang as.pdf TEX2HTML=../tex2html
          cat doc_$lang/as.pdf > $PKG/usr/doc/$PRGNAM-$VERSION/as-$lang.pdf
          ;;
        ps)
          make -C doc_$lang as.ps TEX2HTML=../tex2html
          cat doc_$lang/as.ps > $PKG/usr/doc/$PRGNAM-$VERSION/as-$lang.ps
          ;;
        txt)
          make tex2doc
          make -C doc_$lang as.doc TEX2DOC=../tex2doc
          cat doc_$lang/as.doc > $PKG/usr/doc/$PRGNAM-$VERSION/as-$lang.txt
          ;;
        *)
          echo "Unknown value for DOCTYPES, valid types are: html pdf ps txt" 1>&2
          exit 1
          ;;
      esac
    done
  done
fi

# 20191202 bkw: even after all that, I have to do this:
rm -f $PKG/usr/doc/$PRGNAM-$VERSION/*.tex

cp -a BENCHES README README.LANGS TODO changelog \
    $PKG/usr/doc/$PRGNAM-$VERSION
cat $CWD/$PRGNAM.SlackBuild > $PKG/usr/doc/$PRGNAM-$VERSION/$PRGNAM.SlackBuild

mkdir -p $PKG/install
sed -e "s,@UTF8@,$UTF8," \
    -e "s,@DOCTYPES@,$DOCTYPES," \
    $CWD/slack-desc \
    > $PKG/install/slack-desc

cd $PKG
/sbin/makepkg -l y -c n $OUTPUT/$PRGNAM-$VERSION-$ARCH-$BUILD$TAG.$PKGTYPE
